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Foordite Group

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This page provides mineralogical data about Foordite Group.


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Relationship of Foordite Group to other SpeciesHide

Group Members:
Foordite Sn2+(Nb,Ta)2O6Mon. 2/m : B2/b
Thoreaulite (Sn2+,Pb)(Ta,Nb)2O6Mon.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Foordite GroupHide

Localities for Foordite GroupHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Brazil
 
  • Minas Gerais
    • Itinga
      • Monte Belo
[Thoreaulite] [MinRec 12:74]; Daniel Atencio, Reynaldo R. Contreira Fo., Stuart J. Mills, Jose M.V. Coutinho, Sara B. Honorato, Alejandro P. Ayala, Javier Ellena, and Marcelo B. de Andrade (2011) Rankamaite from the Urubu pegmatite, Itinga, Minas Gerais, Brazil: crystal chemistry and Rietveld refinement. Am. Mineral. 96, 1455–1460.
China
 
  • Heilongjiang Province (Manchuria; Dongbei Region)
    • Hegang Prefecture
      • Luobei Co.
[Thoreaulite] Deshi Lu (1993): Geology and Prospecting 29(6), 8-12
Democratic Republic of the Congo
 
  • Katanga (Shaba)
[Foordite] T. Witzke, unpublished microprobe analysis
  • Kivu
    • Punia
[Foordite] Cerny, P., Fransolet, A.-M., Ercit, T.S., and Chapman, R. (1988) Foordite SnNb2O6 a new mineral species, and the foordite-thoreaulite series. Canadian Mineralogist: 26: 889-898.; Daltry, V.D.C. and von Knorring, O. (1998) Type-mineralogy of Rwanda with particular reference to the Buranga pegmatite. Geologica Belgica: 1: 9-15.; Kristiansen, R. (2001) Sjeldne tantalniobater fra Sentral-Afrika. Eksotiske minerallokaliteter II (Exotic mineral-locations II). STEIN 28 (2): 21-28.
[Foordite] Kristiansen, R. (2001): Sjeldne tantalniobater fra Sentral-Afrika. eksotiske minerallokaliteter II (Exotic mineral-locations II). STEIN 28 (2): 21-28
  • Maniema
[Thoreaulite] Henri Buttgenbach (1947) Les minéraux de Belgique et du Congo belge
[Thoreaulite] Uher, P., Cerny, P., & Chapman, R. (2008). Foordite-thoreaulite, Sn2+ Nb2O6Sn2+ Ta2O6: compositional variations and alteration products. European Journal of Mineralogy, 20(4), 501-516.
  • Nord-Kivu
[Thoreaulite] Vik Vanrusselt photo & specimen (Ex Rik Dillen specimen)
Kazakhstan
 
  • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
    • Kalba Range
      • Irtysh River
[Thoreaulite] Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
[Thoreaulite] Voloshin, A.V., Pakomovskii, Ya.A., Stepanov, V.I., Tyusheva, F.N. (1983): Lithiotantite, Li,(Ta,Nb)3O8, a new mineral from granite pegmatites of Eastern Kazakhstan. Mineralogiceskij Zhurnal, 5(1), 91-95. Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Rwanda
 
  • Western Province
    • Gatumba District
[Thoreaulite] Bertossa, A. (1968) Inventaire des minéraux du Rwanda. Bulletin du Service Géologique de Rwanda: 4: 25-45.; Daltry, V.D.C. and von Knorring, O. (1998) Type-mineralogy of Rwanda with particular reference to the Buranga pegmatite. Geologica Belgica: 1: 9-15.
    • Kabaya District
[Thoreaulite] Ann. Soc. Geol. Belgique, Vol. 73, No. 8, p. 213-218, 1950.
[Foordite] Cerny, P., Fransolet, A.-M., Ercit, T.S., and Chapman, R. (1988) Foordite SnNb2O6 a new mineral species, and the foordite-thoreaulite series. Canadian Mineralogist: 26: 889-898.; Jambor, J. and Vanko, D.A. (1990) New mineral names. American Mineralogist: 75: 707.; Daltry, V.D.C. and von Knorring, O. (1998) Type-mineralogy of Rwanda with particular reference to the Buranga pegmatite. Geologica Belgica: 1: 9-15.
Mineral and/or Locality  
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